How extreme does São Tomé's weather get?

The hottest, coldest, wettest and snowiest days São Tomé has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 34 years of daily weather observations (1991–present), from the Sao Tome Intl station 5 km away. Updated through August 2025 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.

The four kinds of extreme

The hottest, coldest, wettest and snowiest single days São Tomé has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day

102°F Apr 29, 2010

The three most extreme on record

1 102°F Apr 29, 2010

2 102°F Oct 1, 2020

3 100°F Feb 8, 2017

❄️ Coldest night

62°F Sep 23, 2022

The three most extreme on record

1 62°F Sep 23, 2022recent

2 62°F Sep 30, 2022

3 62°F Dec 22, 2022

🌧️ Most rain in one day

3.90 in Sep 20, 2022

The three most extreme on record

1 3.90 in Sep 20, 2022recent

2 3.54 in Apr 29, 2023

3 3.15 in Apr 5, 1991

In plain terms

Across the record, São Tomé has reached as high as 102°F and as low as 62°F. A single day has delivered over 4 inches of rain. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.

Methodology & sources

Temperature & precipitation — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.

How we build these numbers →

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